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I would certainly call it a coffee shop.

Thank you Mr. Micawber. What is the restaurant called where only coffee is served? Thanks.

Thank you, Mr. M.

Maybe it might be a minor thing to mention or ask but can your sentence be like the one below since you are mentioning the name of the restaurant?

I would certainly call it "coffee shop."

Thank you.

BelieverMaybe it might be a minor thing to mention or ask but can your sentence be like the one below since you are mentioning the name of the restaurant?
I would certainly call it "coffee shop."
IMO, MM is not referring in the above to the real name of the shop, which would be something like "T

Thank you.

In my opinion, it might be right to write without the article eventhough, as you said, it is referring to the term used generically (I think that is what you meant.) because the term is still the name of the term.

How about this? How would you answer these? I have tweaked the original question a little bit for the first one.

Q: What is the store where coffee

The store where coffee is sold is called a coffee shop. The store where baked goods are sold is called a bakery, and the person who bakes them is a baker.